Device and method for blow molding containers with drive and coupled motion sequence
A driving device and blow molding technology, applied in the blow molding device and kinematic coupling field, can solve problems such as high adjustment and adaptation requirements, and achieve the effect of simple structure
Active Publication Date: 2018-05-18
KHS GMBH
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- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The disadvantage of these external curve control devices is that the commissioning of the blow molding wheel and of the blow molding stations arranged thereon entails high adjustment requirements, since precise control of the blow molding stations requires Precise orientation between blow molding stations and fixed control curves
Method used
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Embodiment Construction
[0041] The basic structure of the device known from the prior art for transforming a preform 1 into a container 2 is figure 1 and figure 2 shown in .
[0042] The device for forming the container 2 basically comprises a blow molding station 3 provided with a blow mold 4 into which a preform 1 can be inserted. The preform 1 can be an injection-molded part made of polyethylene terephthalate. In order to be able to insert the preform 1 into the blow mold 4 and to be able to remove the finished container 2, the blow mold 4 consists of mold halves 5, 6 and a bottom part 7 which can be lifted by a lifting device. 8 positioning. The preform 1 can be held in the region of the blow molding station 3 by a transfer mandrel 9 which, together with the preform 1 , passes through several processing stations within the device. However, it is also possible to insert the preform 1 directly into the blow mold 4 , for example by means of pliers or another manipulation tool.
[0043] In orde...
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The invention relates to a method for the blow molding of containers (2), wherein a preform (1) is formed after thermal conditioning in a mold having two blow mold halves (19, 20) and a bottom mold ( 7) The inside of the blow mold (4) is stretched by a stretching rod (11) and deformed into a container (2) by blowing pressure, and wherein, feeding and controlling the blowing pressure into the preform (1) The pneumatic block (46) is tightly attached to the preform (1) and is removed after the deformation is completed, wherein at least one blow mold half (19; 20) and the bottom mold (7) are Driven is constructed so that it can be positioned, wherein the blow mold halves (19, 20) and the bottom mold (7) are positioned from an open position into a closed position in which the preform (1) can be inserted into the In the blow mold (4) and can be removed from the blow mold, wherein the stretching rod (11), the pneumatic block (46) and optionally other elements of the blow molding station (3) such as the blow mold locking device Driven positioning is characterized in that at least three of the aforementioned positioning movements of the blow molding station (3) are implemented as a mechanical kinematic coupling and are driven by a common drive (50, 51).
Description
technical field [0001] The invention relates to a method for the blow molding of containers, wherein a preform made of thermoplastic material is stretched in a blow molding station by a stretching rod in a blow mold after thermal conditioning and blown Plastic pressure and deformation into containers. The invention relates to a drive of those parts of a blow molding station to be moved during a blow molding cycle and to their kinematic coupling. The parts to be moved can be, for example, the blow mold halves, the base part, the extension rod, the pneumatic block and, if applicable, the locking device for the blow mold halves. [0002] The invention furthermore relates to a device for the blow molding of containers made of thermoplastic material, which device has at least one blow molding station provided with a blow mold and which is provided with a stretching device, in the region of which A stretching rod for loading a preform that can be inserted into the blow mold is arr...
Claims
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IPC IPC(8): B29C49/06B29C49/12B29C49/36B29C49/42B29C49/48B29C49/56B29C49/78
CPCB29C49/56B29C49/06B29C49/12B29C49/36B29C49/783B29C2049/4892B29C49/4236B29C49/123B29C49/42362B29C2949/0715B29C49/6835B29C2049/7831B29C2049/7832B29C2049/7879
Inventor T·范哈梅R·鲍姆加特F·莱温M·林克
Owner KHS GMBH