Device for controlling the blowing medium in a stretch blower
A technology for controlling stretching and blowing machines, applied in valve devices, mechanical equipment, engine components, etc., can solve the problems of cost-intensive sealing and consumption of interfaces, save costs and materials, reduce space requirements, and reduce air space. Effect
Active Publication Date: 2018-03-09
오이겐자이츠아게
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0006] The devices known from the prior art for controlling the blowing medium in a stretch blower have the disadvantage that they can only be produced with great structural effort
Furthermore, in the known device the interface between the valve housing and the housing block has to be sealed in a cost-intensive manner in order to avoid leakage
Method used
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Embodiment Construction
[0031] exist Figures 1 to 2b A perspective view of a first embodiment of the device for controlling the blowing medium in a stretch blower according to the invention is shown in . As can be seen, the device has a housing block 10 with a first through-opening 11 designed to accommodate a blowing nozzle 100 . In particular, the through-hole 11 is designed cylindrically and extends from the housing block 10 at figure 1 The upper side shown in extends to the lower side not shown.
[0032] Also in the housing block 10 there are control valves 20 , 30 , 40 , 50 and 60 which are connected to the first through-hole 11 and are designed to selectively switch the blower received in the through-hole 11 The air nozzle 100 is connected to a corresponding fluid interface. The fluid connection of the valves 20, 30, 40, 50 to the first through hole 11 is subsequently referred to Figures 3 to 5 The description in to clarify.
[0033] Housing block 10 has a number corresponding to the num...
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The invention relates to a device (1) for controlling the blowing medium in a stretch blowing machine to produce hollow bodies made of heated preforms, wherein the device (1) has a The housing block (10) of the first through hole (11) of the air nozzle (100). Furthermore, a first valve and a second valve (20, 30) are provided which are in fluid connection with the first through-hole (11) and are designed to selectively The blowing nozzle (100) in (11) is connected with the fluid interface (122). In order to simplify the construction of the device and prevent leakage, the housing block (10) also has a first valve channel and a second valve channel for accommodating the first valve and the second valve (20, 30) inside the housing block (10) channels (12, 13), wherein the first valve channel and the second valve channel (12, 13) are in fluid connection with the first through hole (11).
Description
technical field [0001] The invention relates to a device for controlling the blowing medium in a stretch blowing machine to produce hollow bodies made of heated preforms. Background technique [0002] Blowers are sufficiently known from the prior art. The hollow body on the blower typically consists of thermoplastic with a volume of between 0.05 and 20 liters. Typical blown parts are bottles as well as transport, packaging and storage containers. For bottles and containers up to 20 liter capacity polyethylene terephthalate (PET) is preferred today. [0003] For example, blowers designed for PET bottles are known in different variants (with and without mechanical cross bars). In this case, a tubular or bell-shaped blowing nozzle is placed, for example, directly on the mouth of the preform in a gas-tight manner or on a transport carrying the preform, in order to blow the preform with low-pressure blowing air. , high pressure blowing air or exhaust connection. The loading ...
Claims
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IPC IPC(8): B29C55/00
CPCB29K2067/003B29C49/46B29C49/4289B29C2049/7831B29C2049/7833F16K27/003
Inventor 约阿希姆·施密特
Owner 오이겐자이츠아게