WO1995001859A1 - Primary mold of bottle body with handle and method of manufacturing bottle body with handle - Google Patents
Primary mold of bottle body with handle and method of manufacturing bottle body with handle Download PDFInfo
- Publication number
- WO1995001859A1 WO1995001859A1 PCT/JP1993/000957 JP9300957W WO9501859A1 WO 1995001859 A1 WO1995001859 A1 WO 1995001859A1 JP 9300957 W JP9300957 W JP 9300957W WO 9501859 A1 WO9501859 A1 WO 9501859A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bottle
- handle
- primary molded
- lower body
- molding
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B11/00—Making preforms
- B29B11/14—Making preforms characterised by structure or composition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/071—Preforms or parisons characterised by their configuration, e.g. geometry, dimensions or physical properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
- B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D23/00—Details of bottles or jars not otherwise provided for
- B65D23/10—Handles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/06—Injection blow-moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/08—Biaxial stretching during blow-moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/08—Biaxial stretching during blow-moulding
- B29C49/10—Biaxial stretching during blow-moulding using mechanical means for prestretching
- B29C49/12—Stretching rods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/18—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor using several blowing steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/46—Knobs or handles, push-buttons, grips
- B29L2031/463—Grips, handles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7158—Bottles
Definitions
- the present invention relates to a structure of a primary molded product of a synthetic resin-made bottle with a handle, and a method of molding a bottle with a handle using the primary molded product.
- a separately formed handle is attached to the bottle body and fixed, and when forming the bottle, a handle piece is attached to a specific location on the bottle body. Some are shaped.
- polyethylene terephthalate resin is used as a molding material for a synthetic resin bottle as a liquid storage container from the viewpoints of content resistance, mechanical strength of the molded bottle, and sanitation. (Hereinafter simply referred to as PET) is advantageous.
- a configuration shown in Japanese Patent Application Laid-Open No. 58-93950, a configuration shown in Japanese Utility Model Publication No. 2-39926, etc. are used.
- the one disclosed in Japanese Patent Publication No. 58-993350 discloses that the handle portion is formed separately, and that a protrusion, a concave portion or a hole is formed around the joint with the bottle body.
- a part of the expanded body wall portion is inserted into the engaging portion of the handle previously fixed in the mold, and the expansion deformation of the body wall is performed.
- the handle is attached and fixed to the bottle body by making use of the stretching deformation, and the grip is attached to the bottle body.
- Concave parts formed in pairs The pair of recesses forms a portion functioning as a handle at the rear of the trunk.
- the bottle body is formed by insert molding because the biaxial stretching blow molding of the bottle body is performed by insert molding.
- the configuration of the mold apparatus for the machine becomes complicated and the handling and the molding operation become complicated.
- the handle function part can be molded integrally with the bottle body in the case of forming the handle function part at the rear of the body of the bottle.
- the handle function portion formed by the pair of concave portions on the left and right can fully function as a "handle". There was a problem that the applicable range was narrow.
- the present invention has been conceived to solve the above-mentioned problems in the prior art.
- high mechanical strength is required in the lower half of the bottle body. Focusing on this, it was a technical issue to integrate the handle piece into a bottle having a lower body part with sufficiently high mechanical strength by biaxial stretch blow molding ⁇ ], and the handle piece was integrated
- An object of the present invention is to obtain a biaxially stretched blow molded bottle easily and favorably.
- a mouth is integrally provided via a frustum-shaped cylindrical shoulder, and a handle piece that is vertically erected is integrated with the rear part of the substantially cylindrical body wall to form the final shape Having the upper body
- the lower body portion has a frustum shape with a bottom and a truncated cone having an enlarged diameter, and has a thickness distribution in which the thickness increases as approaching the lower end portion. Is good.
- the primary molded product that is biaxially stretched and molded into a bottle is a cylinder with a handle piece integrated at the rear.
- An upper body portion comprising a wall, a shoulder portion, and a mouth portion, and a lower body portion continuously provided in a hanging manner at a lower end of the upper body portion. Only the upper body portion is formed into a final shape, During the biaxial stretch blow molding of the primary molded product into a bottle, the lower element is biaxially stretch blow-molded to the lower body to achieve molding into a bottle.
- this primary molded product is imperfect but in the shape of a bottle, it is effective to use hollow molding as the molding means.By molding the primary molded product by hollow molding, the same as ordinary blow molded products Furthermore, the integral shape of the handle piece with respect to the rear part of the torso wall is achieved without difficulty.
- the lower body part to be biaxially stretched and formed is more suitable for the amount of stretching than the upper body part already formed into the final shape. Therefore, when the primary molded article is biaxially stretch-blow-molded into a bottle, the thickness of the lower body of the molded bottle is not insufficient.
- the lower body part of this primary molded product is shaped like a truncated frustum with a bottom that is enlarged upward, it is compared with the upper half part of the lower body part when biaxially stretch-blow-molding the primary molded product into a bottle.
- a large amount of elongation can be given, thereby reducing the inconvenience such as the occurrence of a portion where the amount of elongation is insufficient in the lower trunk portion to be biaxially stretch blow-molded.
- the amount of stretching at the beginning of the biaxial stretching blow molding to the lower body of the lower body is reduced.
- Stretching deformation concentrates on the upper end of the lower body part where shortage is likely to occur, preventing the shortage of stretching at the upper end of the lower body part and preventing the lower body part from receiving a large amount of stretching. Since the thickness of the portion is sufficiently large, even if the portion is greatly stretched and deformed and stretched and formed on the bottom having the legs, an extremely thin portion does not occur at the bottom.
- the main strength is required for the lower torso, and in many cases, the upper torso does not need to have a large strength, but only needs to have enough strength to maintain its own shape.
- the strength required for the upper body can be sufficiently obtained by simply forming the upper body by hollow molding.
- FIG. 1 shows an embodiment of a primary molded product according to the present invention, and is an overall side view in which the lower half is longitudinally cut.
- FIG. FIG. 3 is a cross-sectional plan view of the embodiment shown in FIG. 2, and
- FIG. 4 is an embodiment of a biaxial stretching blow step which is one of the molding steps of the present invention.
- Fig. 5 is an overall vertical side view showing the assembly status of the blow mold and the bottom mold.
- Fig. 5 shows the completed state of the assembly of the professional mold and the bottom mold in the biaxial stretching blow process shown in Fig. 4.
- Fig. 6 is an overall longitudinal side view
- Fig. 6 is an overall side view showing an embodiment of a bottle formed by biaxial stretching blow molding from the primary molded article shown in Fig. 1.
- FIG. 1 is an overall side view of the lower half of a primary molded product 1 according to the present invention, in which the whole is integrally formed by hollow molding, and a handle piece 4 is erected on the rear part.
- a short cylindrical mouthpiece 8 is provided at the upper end of a cylindrical body wall 3 which is integrally provided in the shape of a cylinder and has a tapered cylindrical wall with a large inclination angle at the upper end of a cylindrical body wall 3 which is reduced in diameter upward.
- a lower body part 9 having a hemispherical shell-shaped downwardly swelling bottom at the lower end of the upper body part 2 erected continuously and having a reduced diameter and an increased thickness as approaching the lower end part is provided. It is constructed by hanging.
- the primary molded product 1 is a hollow molded product, it is easy to integrally form the handle piece 4 with the rear part of the body wall 3 and, similarly to a general synthetic resin blow-molded bottle with a handle, the handle piece is formed. 4 can be easily and easily integrated.
- FIGS. 2 to 5 show an example of a molding procedure for biaxially stretch-blow-molding the primary molded article 1 shown in FIG. 1 into a bottle 1 ′.
- the primary molded article 1 with this mouth-supporting mold piece 14 attached A pair of upper body supporting mold pieces 16 which are split molds are assembled so as to cover the entire upper body portion 2.
- the assembling of the mouth supporting die piece 14 and the upper body supporting die piece 16 to the upper body part 2 is performed by stretching the primary molded product 1 to the upper body part 2 when a biaxial stretching blow molding force is applied. This is achieved in a form that does not cause deformation.
- the heating time for heating the primary molded article 1 to a temperature suitable for biaxial stretch blow molding is not particularly limited, but the mouth supporting mold piece 14 and the upper body supporting mold piece 16 are assembled. In this state, the primary molded article 1 is in a state in which only the lower body portion 9 is exposed, and by utilizing this state, only the exposed lower body portion 9 is subjected to biaxial stretching blow molding. It is advantageous to heat to a temperature suitable for
- the primary molded article 1 If the lower body part 9 of the primary molded article 1 is heated to a temperature suitable for biaxial stretch blow molding, the primary molded article 1, the mouth supporting mold pieces 14 and the upper body supporting mold pieces 16 The combination is assembled with a combination of a pair of blow molds 17 and a bottom mold 20, which are split molds, to achieve mold clamping (see FIGS. 4 and 5).
- the blow mold 17 includes an assembly mold part 18 that is a part that is fixedly attached to the upper body support mold piece 16 assembled to the primary molded product 1, and a lower body part 9 ′ of the lower body part 9. And a combination of a bottom die 20 and a bottom die 20.
- the bottom die 20 has a top surface that is a substantially spherical arc. It is configured to bulge.
- FIG. 6 is an overall side view showing an example of the configuration of a bottle 1 'biaxially stretch blow-molded from the primary molded product 1 of the present invention shown in FIG. 1, and shows a lower body of the primary molded product 1.
- the lower body 9 ′ formed by biaxial stretching blow molding from the base 9 is formed at the lower end of a cylindrical tube wall 10 having four narrow encircling groove-shaped reinforcing recesses 11 disposed at substantially equal intervals.
- legs 13 are formed at the periphery.
- the bottom part 12 which is depressed in the shape of a spherical arc inward is integrally connected.
- the reinforcing ridges 11 provided around the cylindrical wall 10 are for increasing the mechanical durability of the lower body 9 ′ against external pressing force.
- the lower body 9 ′ of the bottle 1 ′ shown in FIG. 6 is formed by biaxial stretch blow molding, compared to the case where the entire bottle is formed by simple hollow molding, the legs 1 ′
- the mechanical strength of the bottom 1 2 including 1 3, especially the impact resistance, is high, so when handling with liquid stored, the bottom 1 2, especially the leg 13, will be partially broken by dropping Can be almost completely eliminated.
- the lower body 9 ′ of the bottle 1 ′ is formed by biaxial stretch blow molding alone from the lower body 9, so that the shape is not restricted by the shape of the upper body 2, Therefore, any combination of the upper torso 2 and the lower torso 9 ′ in the cylindrical shape, for example, the combination of the upper torso 2 in the cylindrical shape and the lower torso 9 ′ in the square cylindrical shape is free. This makes it possible to obtain a bottle 1 ′ having an interesting overall appearance. Industrial applicability
- the upper body of the bottle can be formed by hollow molding, shaping of the handle piece with respect to the upper body can be achieved easily and satisfactorily.
- Stretch blow molded bottles can be reasonably formed easily and well and easily.
- the biaxially stretch blow-molded lower body has the required strength for this bottle.
- the requirements can be sufficiently satisfied, and the upper body is formed by simple hollow molding.However, since the strength requirement for the upper body is a simple self-shape retention ability, Therefore, it is possible to exhibit a sufficiently satisfactory function as a bottle as a liquid container.
- the molding method of the next molded product is a general hollow molding, and the molding method of the lower body is also a general biaxial stretch blow, so that bottle molding is easy, thus simple and easy. It can be implemented well. Since the lower body of the bottle is independently blow-molded from the lower body, it can be formed into any shape without being restricted by the shape of the upper body of the bottle. Therefore, it is possible to freely combine the cylindrical shapes of the upper body and the lower body, and it is possible to obtain a bottle having an interesting appearance and to enhance the commercial value of the bottle. it can.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2463892A JP3174375B2 (en) | 1992-01-14 | 1992-01-14 | Primary molded product of bottle with handle and method of molding bottle with handle |
CA002144052A CA2144052C (en) | 1992-01-14 | 1993-07-09 | Primary mold of bottle body with handle and method of manufacturing bottle body with handle |
US08/392,871 US5795534A (en) | 1993-07-09 | 1993-07-09 | Primary mold of bottle body with handle and method of manufacturing bottle body with handle |
AU45144/93A AU673844B2 (en) | 1993-07-09 | 1993-07-09 | Primary mold of bottle body with handle and method of manufacturing bottle body with handle |
DE69321362T DE69321362T2 (en) | 1993-07-09 | 1993-07-09 | URFORM OF BOTTLE BODY WITH HANDLE AND METHOD FOR PRODUCING BOTTLE BODY WITH HANDLE |
PCT/JP1993/000957 WO1995001859A1 (en) | 1992-01-14 | 1993-07-09 | Primary mold of bottle body with handle and method of manufacturing bottle body with handle |
EP93914986A EP0664193B1 (en) | 1992-01-14 | 1993-07-09 | Primary mold of bottle body with handle and method of manufacturing bottle body with handle |
KR1019950700827A KR0169181B1 (en) | 1993-07-09 | 1993-07-09 | Primary mold of bottle body with handle and method of manufacturing bottle body with handle |
CN93116778A CN1058443C (en) | 1992-01-14 | 1993-07-13 | Initial molt block of bottle with handle and method for forming of bottle with handle |
AU71710/96A AU691765B2 (en) | 1993-07-09 | 1996-11-08 | Blow moulded bottle preform of bottle body with handle |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2463892A JP3174375B2 (en) | 1992-01-14 | 1992-01-14 | Primary molded product of bottle with handle and method of molding bottle with handle |
CA002144052A CA2144052C (en) | 1992-01-14 | 1993-07-09 | Primary mold of bottle body with handle and method of manufacturing bottle body with handle |
PCT/JP1993/000957 WO1995001859A1 (en) | 1992-01-14 | 1993-07-09 | Primary mold of bottle body with handle and method of manufacturing bottle body with handle |
CN93116778A CN1058443C (en) | 1992-01-14 | 1993-07-13 | Initial molt block of bottle with handle and method for forming of bottle with handle |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995001859A1 true WO1995001859A1 (en) | 1995-01-19 |
Family
ID=27427218
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1993/000957 WO1995001859A1 (en) | 1992-01-14 | 1993-07-09 | Primary mold of bottle body with handle and method of manufacturing bottle body with handle |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN1058443C (en) |
WO (1) | WO1995001859A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022056960A1 (en) * | 2020-09-17 | 2022-03-24 | 广州达意隆包装机械股份有限公司 | Blow-molding mold, bottle blowing machine and plastic bottle |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5630828A (en) * | 1979-08-21 | 1981-03-28 | Katashi Aoki | Injection blow molding of hollow vessel with handle |
JPH035132A (en) * | 1989-06-02 | 1991-01-10 | Toppan Printing Co Ltd | Method of molding handle of hollow vessel |
JPH0483629A (en) * | 1990-07-26 | 1992-03-17 | Mitsubishi Plastics Ind Ltd | Manufacture of plastic bottle with grip |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62181130A (en) * | 1986-02-06 | 1987-08-08 | Nissei Ee S B Kikai Kk | Process for molding hollow container with handgrip |
CN1031559C (en) * | 1988-04-08 | 1996-04-17 | 三菱树脂有限公司 | Apparatus for forming blown bottle with handle and method of forming same |
-
1993
- 1993-07-09 WO PCT/JP1993/000957 patent/WO1995001859A1/en active IP Right Grant
- 1993-07-13 CN CN93116778A patent/CN1058443C/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5630828A (en) * | 1979-08-21 | 1981-03-28 | Katashi Aoki | Injection blow molding of hollow vessel with handle |
JPH035132A (en) * | 1989-06-02 | 1991-01-10 | Toppan Printing Co Ltd | Method of molding handle of hollow vessel |
JPH0483629A (en) * | 1990-07-26 | 1992-03-17 | Mitsubishi Plastics Ind Ltd | Manufacture of plastic bottle with grip |
Non-Patent Citations (1)
Title |
---|
See also references of EP0664193A4 * |
Also Published As
Publication number | Publication date |
---|---|
CN1058443C (en) | 2000-11-15 |
CN1097378A (en) | 1995-01-18 |
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