WO2007098696A1 - Moule d'injection et de soufflage directs d'un produit formant un récipient creux en plastique - Google Patents

Moule d'injection et de soufflage directs d'un produit formant un récipient creux en plastique Download PDF

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Publication number
WO2007098696A1
WO2007098696A1 PCT/CN2007/000640 CN2007000640W WO2007098696A1 WO 2007098696 A1 WO2007098696 A1 WO 2007098696A1 CN 2007000640 W CN2007000640 W CN 2007000640W WO 2007098696 A1 WO2007098696 A1 WO 2007098696A1
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WO
WIPO (PCT)
Prior art keywords
mold
blow
injection
movable
row
Prior art date
Application number
PCT/CN2007/000640
Other languages
English (en)
Chinese (zh)
Inventor
Jinqiang Huang
Original Assignee
Jinqiang Huang
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jinqiang Huang filed Critical Jinqiang Huang
Publication of WO2007098696A1 publication Critical patent/WO2007098696A1/fr

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C69/00Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
    • B29C69/02Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore of moulding techniques only
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0053Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/06Injection blow-moulding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42Component parts, details or accessories; Auxiliary operations
    • B29C49/48Moulds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42Component parts, details or accessories; Auxiliary operations
    • B29C49/56Opening, closing or clamping means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02Combined blow-moulding and manufacture of the preform or the parison
    • B29C2049/023Combined blow-moulding and manufacture of the preform or the parison using inherent heat of the preform, i.e. 1 step blow moulding

Definitions

  • the invention belongs to the technical field of plastic processing, and particularly relates to a special mold for molding a plastic hollow container molding product by using a set of molds on an injection molding machine, and is mainly applied to a common injection molding machine.
  • the conventional process uses an extrusion-blow molding method.
  • the product produced by this method has an unremovable protruding crevice on the surface of the product, which makes the surface of the product unsightly and smooth.
  • unnecessary scraps are inevitably present, resulting in waste of production materials and an increase in the cost of product formation.
  • a two-step method has been developed - a method of blowing a blow molded product.
  • the method comprises the following steps of injection molding a blown parison and heating and inflating into a hollow container product on a blow molding machine.
  • the production process is large, the equipment investment is large, the molding process is complicated, and the degree of automation is not high.
  • a new plastic hollow container molding method has been invented, see Chinese invention patent No. CN 1562610A. It is mainly suitable for use in two-station horizontal translation molds. This method separates the injection mold from the blow mold.
  • the blow mold After the injection molding of the blow molded parison is injected into the injection mold, the blow mold is transferred to the blow mold outside the mold of the injection molding machine to form a blow molding product.
  • This method requires a special structure of the injection molding machine, the production process control is difficult, the one-time investment is large, and the mold structure is not compact, the neutrality is not good, and the product quality is not easy to guarantee.
  • the object of the present invention is to provide a mold for injection molding and blow molding a plastic product on a conventional injection molding machine in view of the above-mentioned deficiencies of the prior art.
  • Technical solution adopted by the invention is to provide a mold for injection molding and blow molding a plastic product on a conventional injection molding machine in view of the above-mentioned deficiencies of the prior art.
  • a mold for directly injecting and blowing a plastic hollow container molding product comprising an injection mold assembly and a blow mold assembly;
  • the injection mold assembly includes a movable mold and a fixed mold disposed in an up and down direction.
  • the movable mold is controlled by a set of driving mechanisms to open and close with the fixed mold in the vertical direction;
  • the fixed mold is provided with at least one row of injection ports, and the movable mold is fixed with at least one row of mandrels with blow molding ports, and
  • the injection molding port on the fixed mold has a one-to-one correspondence;
  • the blow molding module includes two templates, which are respectively located on two sides of the core rod, and each of the inner sides of the template is provided with at least one row of finished mold ports, and one for each core rod
  • One correspondence, and the opening and closing of the two templates in the horizontal direction are controlled by another group of driving mechanisms.
  • the mold of the present invention can be directly mounted on an ordinary injection molding machine. After the injection molding is completed, the injection mold is opened, and then the mold is blown and blow molded.
  • the upper surface of the movable mold is provided with a push plate movable in a vertical direction, the core rod runs through the push plate, and the blow mold is supported on the push plate.
  • the punching plate is provided with a blow-molding boss on the top of the push plate corresponding to the mandrel.
  • the lower surface of the movable mold is connected to the air plate assembly.
  • the injection molding of the plastic product can be completed once by using a set of molds on a common injection molding machine, without adding additional equipment, the investment is small, the operation is simple, the automation degree and the production efficiency are high. The quality is guaranteed.
  • the actual realization of injection molding parison and hollow container blow molding are completed on the same mold.
  • the invention has the following advantages: 1. Directly using an ordinary injection molding machine, overcoming the disadvantages of the production process of the two-step method and the two-station method, and the disadvantage of large equipment investment; 2.
  • Figure 1 is a flow chart showing the one-step production using the mold of the present invention
  • Figure 2 is a schematic view of the structure of the present invention.
  • FIG. 3 is a structural schematic view showing the positional relationship between the blow mold and the fixed mold core rod according to the present invention
  • FIG. 4 is a schematic structural view of the mold of the present invention after the first mold clamping
  • Figure 5 is a schematic view showing the structure of the mold of the present invention after the first mold opening
  • Figure 6 is a schematic view showing the structure of the mold of the present invention after the second clamping
  • Figure 7 is a schematic view showing the structure of blow molding
  • Figure 8 is a schematic structural view of the mold of the present invention after the first mold opening
  • Fig. 9 is a schematic view showing the structure of the push plate in accordance with the present invention.
  • the present invention includes an injection mold assembly and a blow mold assembly.
  • the injection mold assembly includes a movable mold 4 and a stationary mold 5 which are disposed in the up and down direction.
  • the movable mold 4 is controlled by a group of driving mechanisms to open and close with the fixed mold 5 in the vertical direction.
  • the fixed mold 5 is provided with a row of injection ports 9, which are in communication with the nozzles 51 on the stationary mold 5.
  • the movable mold 4 is fixed with a row of mandrels 1 having blow molding ports, which are in one-to-one correspondence with the injection ports 9 on the fixed mold 5.
  • the upper surface of the movable mold 4 is provided with a push plate 8 which is vertically movable for pushing out the finished product, the core rod 1 is inserted through the push plate 8, and the blow mold assembly 2 is supported above the push plate 8.
  • the blow mold assembly 2 is composed of two templates 10 which are respectively located on the left and right sides of the mandrel 1 on the movable mold 4, and are controlled by a group of hydraulic drive mechanisms 3 to open and close in both horizontal directions.
  • a row of finished die 101 is disposed on the inner side of each of the templates 10, and corresponds to each of the mandrels 1.
  • the lower surface of the movable mold 4 is connected to the gas plate assembly 41.
  • the injection plate 8 is provided with a blow-molding boss 81 on the upper surface of the push plate 8 corresponding to the mandrel 1.
  • the processing method includes injection molding and blow molding.
  • the injection molding phase consists of the following processes: injection molding machine clamping 11, parison injection 12 and mold opening 13; the blowing phase consists of the following processes: blow mold closure 21, blow molding 22, blow mold opening 24, plasticizing 23 and product ejector 25.
  • the specific process is as follows:
  • the injection molding stage includes: injection mold closing: the movable mold 4 is advanced from the bottom to the fixed mold 5, the core rod 1 is inserted into the injection port 9, and the injection port is directed to the outer surface of the core rod.
  • the mold is opened: the movable mold is lowered, and the mold is separated to complete the injection molding.
  • the blow molding stage includes: under the driving of the hydraulic structure 3, the two templates 10 of the blow mold are closed, and the finished die 101 of the left and right side templates are closed, and each mandrel 1 is collectively Surrounded by the center, the air-plate assembly is blown into the interior of the mandrel 1, and the outer surface of the blank is expanded to fill the space surrounded by the left and right die 101 to form the molded article 6.
  • the two mold plates 10 are separated, and the push plate 8 is vertically moved upward to eject the molded article 6, and then the injection molding machine starts the next injection molding-blowing cycle.
  • the hollow container can be produced by using the mold, and 16 to 32 hollow containers can be produced in one processing cycle, which greatly improves production efficiency and greatly reduces production cost.
  • the production process of the two-step method and the two-station method can be overcome, and the equipment investment is large, the mold structure is compact, the installation is easy, the operation and maintenance are simple, and the one-step completion from the parison to the product is neutral. Well, there is no seam on the surface of the product, and the product quality is easier to guarantee, which greatly improves the automation and production efficiency.

Abstract

La présente invention a trait à un moule d'injection et de soufflage directs d'un produit formant un récipient creux en plastique. Ledit moule comprend : un ensemble moule d'injection et un ensemble moule de soufflage. L'ensemble moule d'injection comprend une matrice mobile (4) et une matrice fixe (5) placées verticalement du haut vers le bas. La matrice mobile (4) peut se déplacer verticalement, commandée par un moteur d'entraînement. La matrice fixe (5) possède au moins une rangée d'ouvertures d'injection (9), et la matrice mobile (4) possède au moins une rangée de noyaux (1) dotés d'ouvertures de soufflage correspondant aux ouvertures d'injection (9) de la matrice fixe (5). L'ensemble moule de soufflage comprend deux plaques de moulage (10) situées de part et d'autre du noyau (1). L'une ou l'autre des deux plaques de moulage (10) possède au moins une rangée d'ouvertures de produit fini (101) correspondant au noyau (1). Le déplacement horizontal des deux plaques de moulage (10) est commandé par un autre moteur d'entraînement.
PCT/CN2007/000640 2006-03-03 2007-02-28 Moule d'injection et de soufflage directs d'un produit formant un récipient creux en plastique WO2007098696A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200610034015.5 2006-03-03
CNB2006100340155A CN100467252C (zh) 2006-03-03 2006-03-03 直接注、吹塑料中空容器成型产品的模具

Publications (1)

Publication Number Publication Date
WO2007098696A1 true WO2007098696A1 (fr) 2007-09-07

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Application Number Title Priority Date Filing Date
PCT/CN2007/000640 WO2007098696A1 (fr) 2006-03-03 2007-02-28 Moule d'injection et de soufflage directs d'un produit formant un récipient creux en plastique

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Country Link
CN (1) CN100467252C (fr)
WO (1) WO2007098696A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114654658A (zh) * 2022-03-17 2022-06-24 杭州恒新塑业有限公司 一体式高分子包装容器成型设备

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CN101264663B (zh) * 2008-01-10 2010-09-01 台山市心华药用包装有限公司 一步法、单工位注、吹塑料中空容器成型产品的模具及其应用
CN101628473B (zh) * 2008-07-19 2014-07-09 叶光明 全自动塑料注吹机的吹塑机构
CN102615788A (zh) * 2012-04-25 2012-08-01 台州市光跃饮水设备有限公司 新式压力桶气囊及模具
CA3048490A1 (fr) * 2017-01-06 2018-07-12 Friendship Products Llc Systemes de moulage et procedes associes
CN107379416A (zh) * 2017-08-02 2017-11-24 安徽原动力生产力促进中心有限公司 一种易成型的注塑模具
CN107566928A (zh) * 2017-08-18 2018-01-09 李世煌 一种音箱的箱体、音箱箱体的吹塑模具和制作方法
CN107877829A (zh) * 2017-12-28 2018-04-06 宁波得晴电器科技有限公司 塑料吹塑成型模具
CN108437409A (zh) * 2018-04-18 2018-08-24 章婧 一种低耗能的塑料瓶吹塑设备
CN112087679A (zh) * 2020-08-21 2020-12-15 李世煌 一种音箱箱体的制作方法和音箱的制作方法
CN113414944B (zh) * 2021-06-23 2023-03-21 无锡威孚工程塑料有限公司 一种多孔成型件及其注塑成型模具
CN114379030B (zh) * 2021-12-30 2023-06-23 广东汇锋模具有限公司 一种可自动拆合模的吹气鞋模、自动注塑设备及注塑方法

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US4115494A (en) * 1974-06-14 1978-09-19 Valyi Emery I Method for controlled processing of blown plastic articles
US4285657A (en) * 1979-12-03 1981-08-25 Ryder Leonard B Injection blow molding apparatus
US4604258A (en) * 1984-11-15 1986-08-05 Canada Cup, Inc. Stack-mold for injection blow molding

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4115494A (en) * 1974-06-14 1978-09-19 Valyi Emery I Method for controlled processing of blown plastic articles
US4285657A (en) * 1979-12-03 1981-08-25 Ryder Leonard B Injection blow molding apparatus
US4604258A (en) * 1984-11-15 1986-08-05 Canada Cup, Inc. Stack-mold for injection blow molding

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114654658A (zh) * 2022-03-17 2022-06-24 杭州恒新塑业有限公司 一体式高分子包装容器成型设备

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CN1817619A (zh) 2006-08-16
CN100467252C (zh) 2009-03-11

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