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Blow molding machine and associated mechanisms

一种机器、模具的技术，应用在吹塑机和相关机构领域，能够解决影响模制容器质量等问题

Inactive Publication Date: 2010-09-22
GRAHAM PACKAGING CO LP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] While such machines allow for high consistent container production rates, there are drawbacks in various mechanisms and methods that, if eliminated, would result in more reliable, high quality container production
[0007] Mold closure also affects the quality of molded containers

Method used

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  • Blow molding machine and associated mechanisms
  • Blow molding machine and associated mechanisms
  • Blow molding machine and associated mechanisms

Examples

Experimental program
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Embodiment Construction

[0057] Referring now to the drawings, wherein like reference numerals designate like elements throughout the different figures constituting the drawings, figure 1 A schematic plan view of an exemplary blow molding machine 10 according to the present invention is shown. Machine 10 includes a turntable 12 rotatable about an axis of rotation 14 by an electric motor (not shown). Preferably, the turntable 12 is oriented horizontally and the axis of rotation 14 is substantially vertical.

[0058] On the turntable 12 are mounted one or more molds 16 . Rotation of the turntable 12 sequentially positions each mold 16 in a counterclockwise direction at a plurality of stations including a first station 18 , a plurality of intermediate stations 20 a - 20 f , and a final station 22 . The number of workstations is equal to the number of molds 16 on the turntable 12, eight in this example, but more or fewer workstations are possible. Each mold 16 includes two mold parts 16a and 16b that c...

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Abstract

A machine (10) for blow molding containers (110). The machine (10) has a stationary flow head (26) located above a turntable (12) with molds (16) mounted on carriages (38). The carriages (38) are mounted on ramps (40) and are raised to remove containers (110) and are lowered from the flow head (12) using a closed loop hydraulic system actuated by a cam. A double rack-and-pinion assembly (78) guides opening and closing of the molds (16) and a locking system having locking shafts (94, 96) engaging apertures (98, 100) in a cross head (74) with pivoting locking keys (102, 104) movable into alignment with the apertures (98, 100) prevents inadvertent mold opening. A container transfer device (32) has inflatable bladders (140) which engage the interior of the containers (110) to prevent damage. Augmented cooling of the containers (110) in the mold (16) is provided by positioning the flow head (26) at an acute angle (28) to the transfer device (32). Different molds (16) may be positioned on the turntable (12) in an alternating arrangement to facilitate production changeover.

Description

[0001] related application [0002] This application claims the benefit of priority to US Provisional Patent Application Serial No. 60 / 984,174, filed October 31, 2007, the contents of which are incorporated herein by reference. technical field [0003] The present invention relates to machines and methods for blow molding plastic resins into containers. Background technique [0004] Containers containing liquids and bulk materials are economically manufactured in a continuous blow molding process in which a parison comprising a hollow tube of molten polymer resin is continuously extruded from a fluid head. A series of moving molds act on the parison, each moving mold being formed from mold halves that are sequentially moved into position under the fluid head in the open configuration. The fluid head is positioned above the path of the mold and the fluid head moves downward toward each open mold to position a portion of the parison between the mold halves as the mold reaches...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C49/30
CPCB29C2049/4871B29C49/421B29C49/04B29C2049/048B29C49/78B29C2793/0081B29C49/56B29C49/58B29C49/4236B29C2049/4221B29C2049/4869B29C49/32B29C49/76B29C49/48B29C49/36B29C2049/047B29C49/70B29C49/04104B29C49/04108B29C49/42105B29C49/42069B29C49/4819B29C49/48185B29C49/28004B29C49/28006B29C49/42073B29C49/42083B29C49/42101B29C49/4237B29C49/42372B29C49/5602B29C49/5606B29C49/561B29C2049/5633B29C2049/5661B29C2049/5663B29C2049/78805
Inventor 瓦尔德马·博莱斯洛·克瓦希涅夫斯基斯洛默·伊雷纽什·施特鲁平斯基帕维尔·斯特凡·阿蒂明斯基达留什·帕维尔·阿桑狄罗伯特·巴特尼克多米尼克·科尔杜拉安杰伊·托马什·科瓦尔奇克莱谢克·科扎克罗伯特·格热戈日·罗加切夫斯基沃伊切赫·索利加马雷克·沃伊切赫·维格洛夫斯基格热戈日·雅罗斯洛·沃伊斯基波格丹·卢德维克·扎伦巴
Owner GRAHAM PACKAGING CO LP
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