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WO2016033998A1 - Structure de soufflage de bouteilles et procédé de soufflage de bouteilles - Google Patents

Structure de soufflage de bouteilles et procédé de soufflage de bouteilles Download PDF

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Publication number
WO2016033998A1
WO2016033998A1 PCT/CN2015/080820 CN2015080820W WO2016033998A1 WO 2016033998 A1 WO2016033998 A1 WO 2016033998A1 CN 2015080820 W CN2015080820 W CN 2015080820W WO 2016033998 A1 WO2016033998 A1 WO 2016033998A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
blowing
pressure
gas
pressure gas
Prior art date
Application number
PCT/CN2015/080820
Other languages
English (en)
Chinese (zh)
Inventor
邹大群
吴志刚
宋奎伟
郭利民
刘青山
Original Assignee
广州达意隆包装机械股份有限公司
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 广州达意隆包装机械股份有限公司 filed Critical 广州达意隆包装机械股份有限公司
Publication of WO2016033998A1 publication Critical patent/WO2016033998A1/fr

Links

Classifications

    • 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
    • B29C49/28—Blow-moulding apparatus
    • 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
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/58—Blowing means

Definitions

  • the present invention relates to a blowing container machine, and more particularly to a blowing bottle structure and a blowing method in a blowing container machine.
  • the blowing container machine is widely used in the field of filling.
  • the blowing structure in the blowing container machine includes a high-pressure tank connected with the external air source device, and the high-pressure tank is respectively connected with the pressure reducing valve and the main blowing valve through the pipeline.
  • the pressure reducing valve is connected to the low-pressure gas storage tank through a pipeline
  • the main blowing valve is connected to an air blowing pipe for blowing a bottle
  • the air blowing pipe is connected with an exhaust valve through a pipeline
  • the low-pressure gas storage tank passes through the pipe
  • the road is in communication with the pre-blowing valve, and the pre-blowing valve is connected to the blowing pipe through the pipeline.
  • the stretching mechanism in the blowing container When it is necessary to blow-form the preform preform, first close all the valves, then transfer the preform to the appropriate position of the blow mold, close the blow mold, and seal the preform preform, then ⁇ ⁇ ⁇ , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,
  • the exhaust valve is smashed to discharge excess gas in the container, thereby completing the entire blow molding process of the container.
  • the gas discharged from the exhaust valve contains more energy, which cannot be recycled, resulting in a large amount of energy consumption, and the compressed air supplied to the blow container by the external air source device. Energy consumption and processing costs of the blow molding machine.
  • the present invention is directed to a blow molding structure and a blowing method capable of recycling and recycling an effective gas in a container, which greatly reduces energy consumption.
  • a blow molding structure includes a high pressure tank connected to an external air source device pipeline, a high pressure tank
  • the main blow valve is connected to the blow pipe for blowing the bottle, and the blow pipe is connected with the exhaust valve through the pipeline, and the low pressure reducing valve passes through the pipeline.
  • the low-pressure gas storage tank is connected to the pre-blowing tank through the pipeline, and the pre-blowing valve and the air blowing pipeline are connected through the pipeline, wherein the low-pressure gas storage tank is also connected to the low-pressure recovery valve through the pipeline.
  • the low-pressure recovery valve is connected to the air blowing pipe through the pipeline; the high-pressure gas enters the high-pressure tank, is depressurized by the low-pressure pressure reducing valve, and then enters the low-pressure gas storage tank, and then the low-pressure gas storage tank passes through the pre-blowing valve and enters the air blowing pipe to carry on the preform Pre-blowing; high-pressure gas is passed from the high-pressure tank through the main blowing valve into the blowing pipe to finally blow the preform into a container; after the container is blown, the gas in the container is recovered from the blowing pipe through the low-pressure recovery valve to the low-pressure gas storage tank. Until the gas pressure in the vessel drops to the lowest value of low pressure gas recovery, stop recovering the low pressure gas.
  • a method of blowing a bottle the steps of which are as follows:
  • the invention relates to a blowing structure and a blowing method.
  • the blowing structure the gas in the first blowing bottle and the re-boiled container is recovered, and the recovered low-pressure gas is applied to the next time.
  • the cycle is repeated. Therefore, the supply of low-pressure gas by the external air source can be reduced, the consumption of the high-pressure gas can be further reduced, the utilization rate of the energy can be improved, and the compressed air energy provided by the external air source device to the blowing container machine can be reduced. It consumes the processing cost of the blowing machine, and is energy-saving and environmentally friendly.
  • FIG. 1 is a schematic view of a blow molding structure of the present invention.
  • FIG. 2 is a connection diagram of a blowing bottle structure of the present invention.
  • a blow molding structure as shown in FIG. 1 and FIG. 2, includes a high pressure tank 1 in communication with an external air source device 7, the high pressure tank 1 and the low pressure reducing valve 5 and the main blowing valve 6 respectively.
  • the main blow valve 6 communicates with an air blowing pipe for blowing a bottle, and the air blowing pipe is connected with an exhaust valve through a pipeline, and the low pressure reducing valve 5 communicates with the low pressure gas storage tank 3 through a pipeline, and the low pressure storage
  • the gas tank 3 communicates with the pre-blowing valve 10 through a pipeline, and the pre-blowing valve 10 communicates with the blowing pipeline through the pipeline, and the low-pressure gas storage tank 3 is also communicated with the low-pressure recovery valve 11 through the pipeline, and the low-pressure recovery valve 11 is connected through the pipeline.
  • the high pressure gas enters the high pressure tank 1, is decompressed by the low pressure reducing valve 5, and then enters the low pressure gas storage tank 3, and then the low pressure gas storage tank 3 passes through the pre-blowing valve 10 to enter the blowing pipe to pre-form the preform 12 Blowing; high pressure gas is passed from the high pressure tank 1 through the main blowing valve 6 into the blowing pipe to finally blow the preform 12 to form a container; after the container is blown, the gas in the container is recovered by the blowing pipe through the low pressure recovery valve 11 to the low pressure storage. In the gas tank 3, until the gas pressure in the container is lowered to Recovered as low pressure gas recovery inch low pressure gas is stopped.
  • the high pressure tank 1 is also in communication with the medium pressure reducing valve 4, the medium pressure reducing valve 4 is connected to the medium pressure gas storage tank 2 through the pipeline, and the medium pressure gas storage tank 2 is respectively connected to the medium pressure storage tank 2
  • the pressure blowing valve 8 and the medium pressure recovery valve 9 are in communication, and the medium pressure blowing valve 8 and the medium pressure recovery valve 9 are connected to the blowing pipe through the pipeline, and the high pressure gas enters the high pressure tank 1, and the medium pressure reducing valve 4 After depressurization, it enters the medium-pressure gas storage tank 2, and then the medium-pressure gas storage tank 2 passes through the medium-pressure air blowing valve 8 to enter the air blowing pipe to perform pre-blowing of the preform 12 after the second blowing; the preform 12 is finally blown.
  • the gas in the container is recovered by the air blowing pipe through the intermediate pressure recovery valve 9 into the medium pressure gas storage tank 2, until the gas pressure in the container is lowered to the lowest value of the medium pressure gas recovery, and the recovery of the medium pressure gas is stopped. Since the low-pressure blown preform is only preformed and stretched to the maximum height, the preform is once formed into position by high-pressure blowing, which will make the amount of high-pressure gas larger and more expensive. Even if the low-pressure gas is recovered through the recovery valve, most of the energy is wasted. Therefore, by setting the medium-pressure gas storage tank, the preform can be further molded by blowing the crucible and further blowing through the medium-pressure gas.
  • the bottle when the bottle is blown with a high pressure, the loss of the high pressure gas can be reduced, and the container can be quickly formed, and the medium pressure gas in the container can be performed. Recycling, it can also recycle medium-pressure gas, greatly reduce the supply of medium-pressure gas to external air source, save energy and environmental protection, and low processing cost.
  • the force can be stabilized during expansion of the preform, and the expansion process Uniform changes do not cause the preform to suddenly expand to the maximum extent and damage the preform.
  • the low pressure gas storage tank 3 is also in communication with a pneumatic device, which is an embryonic mechanism or a stretching mechanism.
  • a pneumatic device which is an embryonic mechanism or a stretching mechanism.
  • the high pressure gas pressure value in the high pressure tank 1 is P 1 ; the medium pressure gas pressure value in the medium pressure gas storage tank 2 is P 2 , and the low pressure gas pressure value in the low pressure gas storage tank 3
  • P 1 the high pressure gas pressure value in the high pressure tank 1
  • the medium pressure gas pressure value in the medium pressure gas storage tank 2 is P 2
  • PP ⁇ PS satisfies the relationship: ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ 2 ⁇ ( ⁇ 1+ ⁇ 3 ) II.
  • a method of blowing a bottle the steps of which are as follows: (1) closing all the valves, then conveying the preform preform 12 to the appropriate position of the blowing mold, closing the blowing mold, and aligning the blowing pipe with the preform bottle a blank port and sealing the preform preform port; (2) a low pressure reducing valve 5, and the high pressure gas entering the high pressure tank 1 from the external air source device 7 is depressurized and flows into the low pressure gas storage tank 3, After inflating, after the inflation is completed, the low pressure reducing valve 5 is closed; (3) the pre-blowing valve 10 is opened, and the gas in the low-pressure gas storage tank 3 is pre-blowing the preform preform 12 through the air blowing pipe, Contacting the bottom of the preform preform by a servo mechanism or other mechanical stretching mechanism, and stretching the preform to the maximum height during the first blowing process; (4) closing the pre-blowing valve 10, opening the main blowing valve 6, high pressure The gas in the tank 1 is again blown to the preform pre
  • the partially recovered low pressure gas can be used not only for the pre-blowing of the next preform blowing, but also for the supply of other low-pressure driving mechanisms, such as the stretching mechanism. Or the embryo mechanism, etc.; (6) Open the exhaust valve, discharge the remaining gas in the container, complete the container blowing and gas recovery process, because the pressure of the part of the gas discharged is low, the flow is slow, and it is not conducive to the blowing process The control between the turns is therefore required to be exhausted as a waste gas; (7) Repeat steps 3 through 6 and cycle until all preform preforms are blown.
  • the recovered low-pressure gas is applied to the next blowing bottle, and the cycle is repeated, thereby reducing the external air.
  • the supply of medium-pressure gas and low-pressure gas further reduces the consumption of high-pressure gas, improves the utilization rate of energy, reduces the energy consumption of compressed air supplied to the blowing container by external air source equipment, and the processing cost of the blowing machine. Environmental protection.
  • the high-pressure gas entering the high-pressure tank 1 from the external air source device 7 is decompressed and then flows into the medium-pressure gas storage tank 2 to inflate it.
  • the medium pressure reducing valve 4 is closed;
  • the pre-blowing valve 10 is closed, the medium pressure blowing valve 8 is first opened, and the gas in the medium pressure gas storage tank 2 is preformed through the air blowing pipe pair.
  • the preform is subjected to secondary blowing, and then the medium pressure blowing valve 8 is closed, and the main blowing valve 6 is opened.
  • the gas in the high pressure tank 1 is finally blown to the preform preform via the air blowing duct, and the final container is blown.
  • the preform By reusing the medium-pressure gas, the preform can be pre-formed and blown after pre-blowing the preform, since the partial pressure gas is not enough for the preform to be blown in place at one time, only the preform can be blown. Close to the shape of the molding, and then blowing a small amount of high-pressure gas, the container can be blown, greatly reducing the consumption of high-pressure gas, saving energy and environmental protection, and reducing production costs.
  • step 5 the main blow valve 6 is closed, and the medium pressure recovery valve 9 is first opened, and the gas in the container is recovered from the air blowing pipe into the medium pressure gas storage tank 2, when the gas pressure in the container is lowered to the medium pressure gas
  • the medium pressure recovery valve 9 is closed; then the low pressure recovery valve 11 is opened, and the gas in the container is recovered from the air blowing pipe into the low pressure gas storage tank 3, and the gas pressure in the container is lowered to the lowest value of the low pressure gas recovery.
  • the low pressure recovery valve 11 is closed.
  • the minimum value of the medium pressure gas recovery is 18 to 24 bar, which is set according to the pressure value required during the blowing process, and the medium pressure gas in the range can effectively blow the preform twice.
  • the minimum value of the low-pressure gas recovery is in the range of 10 to 14 bar.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)

Abstract

L'invention concerne une structure de soufflage de bouteilles et un procédé de soufflage de bouteilles. La structure de soufflage de bouteilles recycle du gaz dans un récipient utilisé dans un premier soufflage de bouteille et un second soufflage de bouteille et applique le gaz à basse pression recyclé dans un soufflage de bouteille suivant et répète le cycle, ce qui permet de réduire un apport de gaz à basse pression provenant d'une source de gaz extérieure, de réduire la consommation de gaz à haute pression, d'améliorer un taux d'utilisation de l'énergie, de réduire la consommation d'énergie résultant de l'apport d'air comprimé d'un dispositif source de gaz extérieur vers une machine de soufflage de récipients, de réduire le coût d'usinage de la machine de soufflage de récipients et d'être respectueux de l'environnement.
PCT/CN2015/080820 2014-09-03 2015-06-04 Structure de soufflage de bouteilles et procédé de soufflage de bouteilles WO2016033998A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410444904.3 2014-09-03
CN201410444904.3A CN104228042A (zh) 2014-09-03 2014-09-03 一种吹瓶结构及吹瓶方法

Publications (1)

Publication Number Publication Date
WO2016033998A1 true WO2016033998A1 (fr) 2016-03-10

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PCT/CN2015/080820 WO2016033998A1 (fr) 2014-09-03 2015-06-04 Structure de soufflage de bouteilles et procédé de soufflage de bouteilles

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CN (1) CN104228042A (fr)
WO (1) WO2016033998A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104228042A (zh) * 2014-09-03 2014-12-24 广州达意隆包装机械股份有限公司 一种吹瓶结构及吹瓶方法
CN108340560A (zh) * 2018-02-06 2018-07-31 江苏新美星包装机械股份有限公司 吹瓶高压气体的控制方法
CN108556311A (zh) * 2018-02-06 2018-09-21 江苏新美星包装机械股份有限公司 用于控制吹瓶高压气体的阀组机构
CN112045972A (zh) * 2020-07-09 2020-12-08 江苏新美星包装机械股份有限公司 一种容器吹制方法
CN112810110A (zh) * 2021-02-02 2021-05-18 东莞市乐善机械设备有限公司 一步法注拉吹成型一体机及其加工方法
CN113427744A (zh) * 2021-07-02 2021-09-24 江苏新美星包装机械股份有限公司 一种五步吹瓶法
CN114889100A (zh) * 2022-05-16 2022-08-12 衢州市智能制造技术与装备研究院 一种改进型pet吹瓶机压缩空气用气系统
CN115256880B (zh) * 2022-07-20 2024-04-16 合肥中辰轻工机械有限公司 一种吹瓶机的二次回收管路系统
DE102022122883A1 (de) 2022-09-08 2024-03-14 Krones Aktiengesellschaft Verfahren und Vorrichtung zum Umformen von Kunststoffvorformlinge zu Kunststoffbehältnissen mit Zwischenblasdrucksteuerung

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CN204095111U (zh) * 2014-09-03 2015-01-14 广州达意隆包装机械股份有限公司 一种吹瓶结构

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ITRM20070370A1 (it) * 2007-07-03 2009-01-04 Sipa Societa Industrializzazio Macchina di stampaggio per soffiaggio di contenitori
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GB2431372A (en) * 2005-10-18 2007-04-25 Ebac Ltd Apparatus and method for blow moulding articles
CN102452164A (zh) * 2010-10-20 2012-05-16 广州达意隆包装机械股份有限公司 全自动旋转式吹瓶机回收气再利用系统
CN104228042A (zh) * 2014-09-03 2014-12-24 广州达意隆包装机械股份有限公司 一种吹瓶结构及吹瓶方法
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